Did the pot you use have holes in the bottom? It looks like you have it just sat on a desk so I'm assuming it's basically just a bucket?
Your moisture problem could just be that you were relying too much on the water evaporating/being absorbed rather than needing to drain out. Gravel at the bottom of a pot with holes in helps water drain really well. Alternatively, without the gravel you could place the pot on a dish, fill the dish and let the water be absorbed from the bottom up.
Your moisture problem could just be that you were relying too much on the water evaporating/being absorbed rather than needing to drain out. Gravel at the bottom of a pot with holes in helps water drain really well. Alternatively, without the gravel you could place the pot on a dish, fill the dish and let the water be absorbed from the bottom up.